Adams Rite MS1837 Series Two-P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$316.10
$221.05
Adams Rite MS1837 Series Two-Point Deadlock with Pivoted Bolt and Threshold Security

Adams Rite MS1837 Series Two-Point Deadlock with Pivoted Bolt and Threshold Security

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Model: MS1837-628
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$316.10
$221.05
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Adams Rite MS1837 Series Two-Point Deadlock with Pivoted Bolt and Threshold Security

Maximum Security Two-Point Locking System for Wood Door Pairs

The Adams Rite MS1837 Series Two-Point Deadlock provides maximum security for wood door pairs through simultaneous dual-point locking with a single key turn. This Grade 1 commercial deadlock features a case measuring 1" x 6" x 2-3/16" with 1-1/2" backset and accepts standard 1" length mortise cylinders. The system eliminates the need for inconvenient flush bolts by dropping a stainless steel hexagonal bolt into the threshold while pivoting the massive MS bolt into the opposite door leaf.

Professional Features & Benefits

  • Specifically engineered for narrow stile aluminum doors
  • Hollow metal and wood door options available
  • Accepts standard Adams Rite MS® cam mortise cylinders
  • Multiple finish options: US3, US4, US10B, US32, US32D
  • UL Listed models available
  • Compatible with Adams Rite electric strikes for access control
  • An ASSA ABLOY Group brand

Technical Specifications

  • For complete technical specifications, contact Adams Rite at 1-800-626-7590 or visit adamsrite.com.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and proper door pair alignment for dual-point operation.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on both door leaves and threshold area.
  3. Prepare doors and threshold by drilling required holes and routing as specified in manufacturer instructions for case, bolt strikes, and threshold bolt.
  4. Install the deadlock case in the active door leaf and secure with provided mounting screws per manufacturer torque specifications.
  5. Install the 4001-011 Strike Plate with dust box for the MS bolt and prepare threshold bolt strike (1/2" diameter hole in metal threshold or 4005 Strike for wood threshold).
  6. Test dual-point operation with 360° key turn to verify proper bolt projection into opposite door and threshold drop, ensuring smooth operation and positive locking. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • High-Security Commercial Entrances

Why Choose Adams Rite Quality?

Adams Rite MS1837 deadlocks deliver professional-grade security with eight-ply laminated steel construction and alumina ceramic core protection rated for Grade 1 commercial applications. The 5-year manufacturer warranty and corrosion-resistant steel case with stainless steel components ensure reliable performance in demanding commercial environments. Engineered for maximum security applications where dual-point locking and tamper resistance are essential.

Product Specs

Product Group:
Sliding Door and Barn Door Hardware
Series:
MS1837 Series
Grade:
Grade 1
Cylinder Included:
No
Warranty:
5 Year
Subcategory:
Deadlocks
Product Subgroup:
Deadlocks
Commercial/Residential:
Commercial
Product Model:
1837
Product Dimension:
1" x 6" x 2-3/16"
Face Plate:
Flat & Two-piece plate
Product Category:
Sliding Door and Barn Door Hardware
Backset (Distance):
1-1/2"
Department:
Door Hardware
Product Type:
Deadlocks

Adams Rite MS1837-628 – Frequently Asked Questions

1) Will the Adams Rite MS1837 deadlock work on a pair of doors without flush bolts?
That is exactly what the MS1837 is built to do. One 360 degree key turn drives the pivoted MS bolt into the opposite door leaf and drops a stainless steel hexagonal bolt into the threshold at the same time, so the inactive leaf is held top-to-bottom without a separate set of flush bolts. Two locking points, one key turn, no second operation for the crew or the tenant to forget.
2) What backset does the MS1837 two-point deadlock need in the door stile?
1-1/2 inch backset, which is the narrow stile backset rather than the 2-3/8 or 2-3/4 inch you would prep for a bored lock. The lock case itself is 1 x 6 x 2-3/16 inches, so the stile has to take that case at that backset. If the door is prepped for a wider backset mortise lock, this is not a drop-in.
3) Does the Adams Rite MS1837 come with a cylinder?
No cylinder ships with it. You order the MS1837 and the cylinder separately, and it takes a standard 1 inch length mortise cylinder with the Adams Rite MS cam. Get the cam right, not just the length, or the cylinder will turn and the bolt will not throw.
4) What else do I have to order to install an MS1837 besides the lock and cylinder?
Strikes. The MS bolt needs the 4001-011 strike plate with dust box in the opposite leaf, and the threshold bolt needs a 1/2 inch diameter hole in a metal threshold or the 4005 strike if the threshold is wood. Those, the cylinder, and the manufacturer template are the parts that decide whether the job finishes in one trip.
5) Can the MS1837 be used on aluminum storefront doors or only wood doors?
The MS1837 is engineered for narrow stile aluminum doors, with hollow metal and wood door options offered as well. The common thread is stile depth: at a 1-1/2 inch backset with a 1 x 6 x 2-3/16 inch case, the stile has to accept that case regardless of the door material.
6) Is the MS1837 deadlock ANSI Grade 1?
Grade 1, and it is a commercial-duty lock rather than a residential one. For a spec that calls out Grade 1 hardware on an entry pair, it meets the line item.
7) What finishes does the Adams Rite MS1837 two-point deadlock come in?
Five: 313 dark bronze anodized, 335 black anodized, 605 bright brass, 626 satin chrome, and 628 clear anodized. On a storefront pair, 313 and 628 are the two that normally match existing anodized aluminum stiles, while 626 matches most satin chrome exit and pull hardware already on the opening.
8) Can I put the MS1837 on an access control opening with an electric strike?
It works with Adams Rite electric strikes, and UL Listed models are offered in the series. Bear in mind what the second locking point does to your access control design: the threshold bolt is a mechanical drop bolt into the floor, so an electric strike releases the leaf-to-leaf MS bolt side, not the threshold pin.
9) Should I use a two-point deadlock like the MS1837 or a standard MS deadlock plus flush bolts on a door pair?
Flush bolts are the cheaper prep, but they are a second operation: someone has to throw the top and bottom rods on the inactive leaf, and in practice they get left open. The MS1837 replaces that with a single key turn that pivots the MS bolt into the opposite leaf and drops a threshold bolt at the same time. If the pair is a high-traffic tenant entrance where the closing routine is not reliable, the two-point is the one that actually stays locked. A single-point MS deadlock is the simpler choice on a single door with a frame jamb to latch into.
10) Will the MS1837 work if my threshold is wood instead of an aluminum threshold?
Yes, with the right strike. In a metal threshold the hexagonal bolt drops into a 1/2 inch diameter hole; in a wood threshold you use the 4005 strike instead. Either way the threshold has to be sound enough to hold the bolt, since it is carrying the bottom locking point.
11) Can I key the MS1837 into the same system as the rest of my building?
Yes, because the cylinder is a separate order. The MS1837 accepts a standard 1 inch mortise cylinder with the Adams Rite MS cam, so you buy that cylinder in your existing keyway and keying and the deadlock falls into the same system as your other openings. Nothing about the lock case restricts the keyway.
12) What faceplate options does the MS1837 deadlock come with, and does it matter for the door prep?
Both a flat plate and a two-piece plate are available. The two-piece is the one to look at when the stile face and the bolt case do not sit flush after routing; the flat plate suits a clean single-plane prep. Decide it against the actual stile before you cut, since the routing differs.
How fast can I get the Adams Rite MS1837-628 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Adams Rite MS1837-628 come with a warranty?
Absolutely. The Adams Rite MS1837-628 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Adams Rite MS1837-628?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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